Railway truck



Jan. 19 1926.

. H. GLAENZER ET AL RAILWAY TRUCK Filed May 11. 1925 5 Sheets-Sheet 1 Zea/14 Jan 7 H. GLAENZER ET A RAILWAY TRUCK .Filed May 11; 1925 3 s eets-Sheet 2 H. GLAENZER-ET AL RAILWAY TRUCK Jan. 19 1926. 1,570,563

Filed May 11 1925 3 Sheets-Sheet 5 Patented Jan. 19, 1926.

PATENT OFFICE.

HARRY GLAENZER AND JOHN S. KEEN, OP PHILADELPHIA, PENNSYLVANIA, AS- v SIGNORS TO THE BALDWIN LOCOMOTIVE WORKS, OF PHILADELPHIA, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

RAILWAY TRUCK.

To all whom it 'mag concern:

Be it known that we, HARRY GLAENZER and JOHN S. KE N, citizens of the United States, residing in Philadelphia, Pennsylvania, have invented a Railway Truck, of which the following is a specification.

A railway truck embodying the invention is a plicable to cars and locomotives, articu arly electric locomotives, and it wi be understood that the term car as used herein is to be construed broadly as also covering locomotives and other equivalent or similar constructions.

The principal object of the invention is to (provide a railway truck for locomotives an the like having a simple and rugged construction and provided with improved means for supportin the bolster from the main truck frame. urther objects of the invention will be ap arent from the followin specification an claims.

11 the accompanyingdrawings we have shown the embodiment of the invention which we now deem referable but it will be understood that t e drawings are for illustrative urposes only and that various changes and substitutions may be made within the scope of the claims without de-,

partin from the spirit of" the invention.

Of t 1e drawings:

Fig. 1 is a plan view of a truck embodyingFthe invention.

ig. 2 is a longitudinal sectional view taken along the line 2 '-2 of Fig. 1.

Fi 3 is a fragmentary longitudinal sectiona view taken along the line 3--3 of Fig. 1.

ig. 4 is a vertical transverse sectional view taken along the line 4-4 of Fig. 2.

Fig. 5 is a fragmentary longitudinal sectional view taken along the line 5-5 of enforces the several parts of the side mem-.

ber proper. The two side members 1, 1 are connected at their ends by transverse tie member of the frame is bars 5, 5. Positioned in the recesses 2, 2 in the usual manner are axle journal boxes 6, 6 which are capable of a limited amount of vertical movement without engaging the frame at the to s of the recesses or engaging the tie mem er 4 at the bottoms of the recesses. The axle boxes are supported on the usual axles 7, 7 which are connected with track wheels 8, 8.

Extendin longitudinally at opposite sides of eac 1 of the main side members 1, 1 are bridge members 9, 9, which rest directly on the journal boxes 6, 6. Located in the recess 3 and between the two bridge members 9, 9 is a spring 10, referably of the leaf type which is carried y the said bridge members. Preferably there are two links 11, 11 provided for this purpose, and each of these links is connected with the two bridge members by means of a bearing pin 12. The ins 12 serve not only to sup ort the links ut also to connect. the two brldge members together to form a unitary structure. The spring 10 is provided with apertures near its ends through. which the respective links 11 extend; and the spring rests at its ends on shoe plates 13, 13 Which are also apertured for the links 11, 11. Pins 14, 14 extend transversely through apertures in the links and engage seats formed in the bottoms of .the plates 13, 13. As the resultof this construction, each spring is flexibly'carried by the corresponding bridge members 9, 9.

' As shown most clearly in Fig. 3, each side rovided with a spring seat 15 which is a apted to receive the upper end of a bearing member 16 carried by the spring 10. Preferably this hearing member also serves as a spring clipi being provided with a recess t rough wiich the several'leaves of the spring ass. Preferably the upper end of the bearing member 1 16 is slightly convex so as to provide a certain de ree of flexibility. From the foregoing eseri'ption it will be clear that the springs 9, 9 serve to resiliently support the truck frame in such a way as to permit any one of the axle journal boxes to move independently of the others and independently of the frame to accommodate irregularities in the road bed.

The bolster sup ort is shown at 17 and this extends entire y across the frame, being rigidly' connected by bolts or otherwise to the tops of the side members 1,1. The bolster support 17 has two similar transverse elements 18, 18 which are separated to provide a large transversely extending recess 19 between them. -Preferably the elements 18, 18 are connected together at the bottom below the recess by a tie 20 as shown in Fig, 2.

Located in the recess 19 is a bolster 21 which'is supported from the bolster support by means of four links 22, 22. The bolster 21 has transverse vertical guide surfaces 23 which are adapted to engage similar surfaces 24:- on the interior of the recess 19 in the bolster support 18. The bolster has a loose fit in the recess but the said guide surfaces serve to prevent any considerable rela- 'tive longitudinal movement of the bolster,

without interfering with lateral movement. Each of the links 22, 22 is located in a short transversely extending pocket 25 in one of the transverse elements 18 of the bolster support and it is connected therewith by means of two pins or bolts 26, 26. The links 22, 22 are pivotally connected with the bol ster 21 by means of longitudinally extending pivot pins 26, 26. As shown most clearly in Figs. 4 and 6,'each link engages the corresponding bolts or pins 26 only at the tops thereof, being cut awa below the pins to form a recess 27. It wi 1 be clear, therefore,

that each link 22 is normally held by gravity in engagement with both of thepins 26, but

' that upon the application of lateral pressure can be moved about the axis ofei er pin. This means of supporting the bolster 21, therefore, serves to normally hold the bolster in its normal central position as shown but in service a slight lateral movement 0 the bolster can take place to eliminate severe strain and shock. After such lateral move- ,ment, however, the bolster is quickly returned ,by gravity to its normal central position.

The bolster 21 is provided at its center with a socket 28 which is adapted to receive a pivot boss 29 depending from the body of the locomotive or car. It wlill be clear that the socket 28, together with the pivot boss 29, constitute a pivotal'connection between the truck and the locomotive or car body. Preferably as shown, the socket 28 is provided with a liner 30 which is slightly convex in vertical section so as to permit a limited amoiint of side sway of the car or a limited amount of relative rocking of the truck without causing binding or clamping.

At the respective ends of the bolster 21 are seats 31, 31 which are adapted to engage and support the equalized spring structure of the locomotive or car. It Wlll be observed that these seats are approximately vertically above the pivotal axes of the respective pairs of supporting links 22, 22. The spring structure is indicated at 32 but is not deting it to move laterally in the sai scribed in detail, as it is or may be of any usual or preferred construction and does not constitute any part of our present invention. It will be understood' that the pivot boss 29 is free to move vertically in the socket 28 to accommodate the action of the spring mechanism 32.

What we claim is:

1. In a railway truck, the combination with the truck wheels, the axles, the journal boxes and the main frame, of means for supporting the main frame on the said boxes, a transverse bolster support extending across the main frame and comprising two transverse members with a transverse recess between them, a bolster located in the said recess and adapted to support a car body,

two pairs of links respectively located at opposite sides of the center of the truck and connected with the respective transverse members and serving to support the bolster on the bolster support while permitting it to move laterally 1n the said recess, and two pivot pins at one end of each link and engaging it only at their outer sides so that pivotal movement can take'place about either of them.

2. In a railway truck, the combination with the truck wheels, the axles, the journal boxes and the main frame, of means for supporting the main frame on the said boxes, a transverse bolster support extending across the main frame and comprising 'two transverse members with a transverse recess between them, a bolster located in the said recess and adapted to sup ort a car body, two pairs of links respective y located at opposite sides of the center of the truck and connected with the respective transverse members and serving to 'su port the bolster on the bolster support whi e ermitrecess, two pivot pins at the respective ends of the bolster and extending through it to-engage the two links of the respective airs, and two pivot pins for each link carrle-d b the corresponding transverse member an engaging the said link only at their lower sides so that pivotal movement can take place about either of them.

3. In a railway truck, the combination with the truck wheels, the axles, the journal boxes and the main frame, of means for supporting the main frame on the said boxes, a transverse bolster support extending across the main frame and comprising two transverse members with a transverse recess between them, each member having two pockets formed therein at opposite sides of the center of the truck, a bolster located in the said recess and adapted to support a car body, pivoted links located in part in the respective pockets and serving to support the bolster on the bolster support while permitting it to move laterally in the said recess,

tween them, each and two pivot pins at one end of each link i and engaging it only at their outer sides so that pivotal movement can take place about either of them.

4. In a railway truck, the combination with the truck wheels," the axles, the journal boxes and the main frame, of means for supporting the main frame on the said boxes, a transverse bolster support extending across the main frame and comprising two transverse members with a transverse recess bemember havin two pockets formed therein at opposite sides of the center of the truck, a bolster located in the said recess and adapted to support a car body, pivoted links located in part in the respective pockets and serving to support the bolster on the bolster support while permitting it to move laterally in the said recess, and two pivot pins extending through each pocket and engaging the corresponding link only at their outer sides so that pivotal movement can take place about either of them.

5. In a railway truck, the combination with the truck wheels, the axles, the journal boxes and the main frame, of means for supporting the main frame on the said boxes, atransverse bolster support extending across the main frame and comprising two transverse members with a transverse recess between them, the transverse walls of the recess being vertical and parallel, a

bolster located in the said recess and adapted to support a car body, the surfaces of the bolster approximately fitting between the transverse walls of the recess, pivoted links serving to support the bolster on the bolster support while permitting it to move lateraly in the said recess, and two pivot pins at one end of each link and engagin it only at their outer sides so that pivota movement can take place about either of them.

6. In a railway truck, the combination with the truck wheels, the axles, the journal boxes and the main frame, of means for supporting the mainframe on the said boxes, a transverse bolster support extending across the main frame and comprising two 'trans verse members with a transverse recess between them, a bolster located in the said recess and adapted to support a car body, links located at opposite sides of the center of the truck and pivotally connected to the bolster support and bolster, the said links serving to support the bolster on the bolster support while permitting it tomove laterally in the said recess, and seats for a car body supporting mechanism respectively located approximately vertically above the axes of the pivotal connections between the links and the bolster.

HARRY GLAENZER. JOHN s. KEEN. 

